/* ==========================================================================
   The Education Bridge Initiative — Site Stylesheet
   Palette: Dark Blue + White (institutional, trustworthy, credible)
   ========================================================================== */

:root {
  --navy-950: #0a1530;
  --navy-900: #0d1b3a;   /* primary dark blue (matches logo) */
  --navy-800: #14274d;
  --navy-700: #1c3766;
  --navy-600: #274a86;
  --blue-500: #3f6fc4;   /* interactive accent */
  --blue-400: #6c93d6;
  --white: #ffffff;
  --off-white: #f5f7fb;
  --mist: #e9edf6;
  --line: #d9e0ee;
  --ink: #101a30;
  --ink-soft: #48526b;
  --shadow: 0 12px 32px -12px rgba(10, 21, 48, 0.28);
  --shadow-sm: 0 4px 14px -6px rgba(10, 21, 48, 0.22);
  --radius: 14px;
  --radius-sm: 8px;
  --content-width: 1160px;
  --font-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--navy-900);
  line-height: 1.15;
  margin: 0 0 0.5em;
  font-weight: 700;
}

h1 { font-size: clamp(2.2rem, 4vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: 1.35rem; }
p { margin: 0 0 1em; color: var(--ink-soft); }
a { color: var(--blue-500); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-500);
  margin-bottom: 0.9em;
}

section { padding: 72px 0; }
.section-tight { padding: 48px 0; }
.bg-navy { background: var(--navy-900); color: var(--white); }
.bg-navy h1, .bg-navy h2, .bg-navy h3, .bg-navy h4 { color: var(--white); }
.bg-navy p { color: rgba(255,255,255,0.82); }
.bg-off { background: var(--off-white); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  padding: 15px 30px;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
  text-decoration: none !important;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--white);
  color: var(--navy-900);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { box-shadow: var(--shadow); background: var(--mist); }
.btn-solid-navy {
  background: var(--navy-900);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-solid-navy:hover { background: var(--navy-700); box-shadow: var(--shadow); }
.btn-outline {
  background: transparent;
  border-color: currentColor;
  color: inherit;
}
.btn-outline:hover { background: rgba(255,255,255,0.1); }
.btn-outline-navy {
  background: transparent;
  border-color: var(--navy-900);
  color: var(--navy-900);
}
.btn-outline-navy:hover { background: var(--navy-900); color: var(--white); }
.btn-lg { padding: 19px 38px; font-size: 1.08rem; }
.btn-block { width: 100%; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy-900);
  box-shadow: 0 2px 18px -6px rgba(0,0,0,0.35);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 24px;
  max-width: 1360px;
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 0.96rem;
  line-height: 1.15;
  flex: 0 0 auto;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand img { height: 36px; width: auto; }
.brand-name { display: flex; flex-direction: column; }
.brand-name small {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.63rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--blue-400);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
}
.nav-links a {
  display: block;
  color: rgba(255,255,255,0.86);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 9px 10px;
  border-radius: 8px;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
}
.nav-links a:hover { background: rgba(255,255,255,0.1); color: var(--white); }
.nav-links a.active { color: var(--white); background: rgba(255,255,255,0.14); }

.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-cta .btn { padding: 10px 20px; font-size: 0.92rem; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.6rem;
  cursor: pointer;
  padding: 4px 8px;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--navy-950) 0%, var(--navy-900) 55%, var(--navy-700) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
  padding: 84px 0 70px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
.hero h1 { color: var(--white); }
.hero .tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--blue-400);
  margin-bottom: 0.6em;
}
.hero p.lead {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  max-width: 54ch;
}
.hero-art { width: 100%; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

/* Three primary action cards on Home */
.action-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: -56px;
  position: relative;
  z-index: 5;
}
.action-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px 26px;
  text-align: center;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.action-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px -14px rgba(10,21,48,0.35); text-decoration: none; }
.icon-badge {
  width: 62px; height: 62px;
  border-radius: 50%;
  background: var(--navy-900);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.icon-badge svg { width: 30px; height: 30px; flex-shrink: 0; }
.action-card h3 { margin: 0; color: var(--navy-900); }
.action-card p { margin: 0; font-size: 0.94rem; }
.action-card .card-btn {
  margin-top: 6px;
  font-weight: 700;
  color: var(--blue-500);
  font-size: 0.92rem;
}

/* ---------- Generic page hero (sub-pages) ---------- */
.page-hero {
  background: var(--navy-900);
  color: var(--white);
  padding: 56px 0 60px;
  position: relative;
  overflow: hidden;
}
.page-hero h1 { color: var(--white); margin-bottom: 0.3em; }
.page-hero p { color: rgba(255,255,255,0.82); max-width: 62ch; font-size: 1.08rem; }
.page-hero .decor { position: absolute; right: -60px; top: -40px; opacity: 0.16; width: 320px; }

/* ---------- Cards / Grids ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}
.card h3 { margin-bottom: 0.4em; }

/* ---------- Stats / Goals ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.stat-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.stat-card .stat-label {
  font-weight: 700;
  color: var(--navy-900);
  font-size: 1.1rem;
  margin-bottom: 4px;
}
.stat-card .stat-target {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  color: var(--navy-900);
  font-weight: 700;
}
.progress-track {
  height: 14px;
  background: var(--mist);
  border-radius: 999px;
  overflow: hidden;
  margin: 14px 0 8px;
  border: 1px solid var(--line);
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--blue-500), var(--navy-800));
  border-radius: 999px;
}
.progress-note { font-size: 0.86rem; color: var(--ink-soft); }
.editable-note {
  font-size: 0.8rem;
  color: var(--blue-500);
  background: #eef3fc;
  border: 1px dashed var(--blue-400);
  padding: 6px 10px;
  border-radius: 6px;
  display: inline-block;
  margin-top: 10px;
}

/* ---------- Steps / How to help ---------- */
.step-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  height: 100%;
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--navy-900);
  color: var(--white);
  font-family: var(--font-serif);
  font-weight: 700;
  margin-bottom: 14px;
}

/* ---------- Partners ---------- */
.partner-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.partner-logo {
  width: 96px; height: 96px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--navy-900);
  display: flex; align-items: center; justify-content: center;
}
.partner-logo svg { width: 50px; height: 50px; }
.partner-role {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blue-500);
  margin-bottom: 6px;
}

/* ---------- Timeline / Events ---------- */
.event-card {
  display: flex;
  gap: 20px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 18px;
}
.event-date {
  flex: 0 0 92px;
  background: var(--navy-900);
  color: var(--white);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 12px 6px;
  text-align: center;
}
.event-date .month { font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--blue-400); }
.event-date .day { font-family: var(--font-serif); font-size: 1.7rem; font-weight: 700; }
.event-body h3 { margin-bottom: 4px; }
.event-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--navy-900);
  background: var(--mist);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.contact-item .icon-badge {
  flex: 0 0 48px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--navy-900);
  display: flex; align-items: center; justify-content: center;
}
.contact-item .icon-badge svg { width: 24px; height: 24px; }
.contact-item h3 { margin-bottom: 2px; font-size: 1.05rem; }
.contact-item a { font-weight: 600; }

/* ---------- Address / drop-off cards ---------- */
.address-card {
  background: var(--white);
  border: 2px dashed var(--blue-400);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}
.address-card h3 { display:flex; align-items:center; gap:10px; }
.address-card h3 svg { stroke: var(--navy-900); flex-shrink: 0; }
.address-card .placeholder-tag {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--white);
  background: var(--blue-500);
  padding: 3px 9px;
  border-radius: 999px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-950);
  color: rgba(255,255,255,0.75);
  padding: 56px 0 26px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.footer-brand img { height: 40px; }
.footer-brand span { color: var(--white); font-family: var(--font-serif); font-weight: 700; font-size: 1.05rem; }
.site-footer h4 {
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 10px; }
.site-footer a { color: rgba(255,255,255,0.75); }
.site-footer a:hover { color: var(--white); }
.social-row { display: flex; gap: 12px; margin-top: 6px; }
.social-row a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s ease;
}
.social-row a:hover { background: var(--blue-500); }
.social-row svg { width: 18px; height: 18px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.84rem;
}

/* ---------- Sticky mobile donate bar ---------- */
.mobile-donate-bar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 200;
  background: var(--navy-950);
  padding: 12px 16px;
  box-shadow: 0 -6px 20px rgba(0,0,0,0.3);
}
.mobile-donate-bar .btn { width: 100%; }

/* ---------- CTA banner (reusable, repeated across pages) ---------- */
.cta-banner {
  background: var(--navy-900);
  color: var(--white);
  border-radius: var(--radius);
  padding: 44px;
  text-align: center;
  box-shadow: var(--shadow);
}
.cta-banner h2 { color: var(--white); margin-bottom: 0.3em; }
.cta-banner p { color: rgba(255,255,255,0.82); max-width: 60ch; margin-left: auto; margin-right: auto; }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; margin-top: 20px; }

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mx-auto { margin-left: auto; margin-right: auto; }
.max-60 { max-width: 60ch; }
.badge-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.badge-list span {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 600;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-art { max-width: 340px; margin: 0 auto; }
  .action-grid { grid-template-columns: 1fr; margin-top: 34px; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .nav-links, .nav-cta .btn-outline { display: none; }
  .nav-toggle { display: block; }
  .nav-wrap.open .nav-links {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--navy-900);
    flex-direction: column;
    padding: 10px 20px 18px;
    gap: 2px;
    box-shadow: var(--shadow);
  }
  .mobile-donate-bar { display: block; }
  body { padding-bottom: 68px; }
  .footer-grid { grid-template-columns: 1fr; }
  section { padding: 52px 0; }
  .event-card { flex-direction: column; }
  .event-date { flex-direction: row; gap: 8px; width: fit-content; padding: 8px 16px; }
}

@media (max-width: 480px) {
  .hero { padding: 60px 0 50px; }
  .action-card { padding: 24px 20px; }
}